The King of Sausage!!
I am shooting a remington r-15 in 223 cal. My question is it has an 18 inch barrel with a 1 in 9 twist. I am told I lose roughly 50 per sec per inch on a shorter barrel. Ballistics and velocity are usually base on a longer barrel with x amount of pressure. Does this pressure drop in a shorter barrel along with velocity? Will I be loading a hot load if I try and increase my velocity? Or is the pressure in relation to the shorter barrel less?